How to Use These <strong>Regulations</strong>1. Familiarize yourself with the GENERAL REGULATIONS, listed on pages6–7. They include permit requirements for fishing, boats, <strong>and</strong> float tubes;tackle & bait restrictions; <strong>and</strong> size or possession limits.2. See the map on pages 8–10 to determine which of the twomanagement areas within the park—the Native Trout ConservationArea or the Wild Trout Enhancement Area—you will be in.3. Read the POSSESSION LIMITS BY MANAGEMENT AREA on page 8 todetermine the allowed harvest. Catch-<strong>and</strong>-release is m<strong>and</strong>atory forcutthroat trout <strong>and</strong> all other native species in both management areas.4. Check if the stream or lake you will be fishing is listed on page 10 in theEXCEPTIONS TO GENERAL REGULATIONS.ContentsAquatic Invasive Species . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5General <strong>Regulations</strong>—fishing & boating . . . . . . . . . . . . . . . . . . . . . . . 6–7Management Area Limits <strong>and</strong> Map. . . . . . . . . . . . . . . . . . . . . . . . . . . 8–10Exceptions to General <strong>Regulations</strong> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Fish Identification <strong>and</strong> Distribution . . . . . . . . . . . . . . . . . . . . . . . . . 11–13Releasing Fish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Volunteer Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Angler Etiquette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Illegal Actions/Reporting Violations. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15<strong>Yellowstone</strong>’s Fishery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Frequently Asked Questions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17For More Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back CoverStay Safe & LegalYou are responsible for following all park regulations.Consult <strong>Yellowstone</strong> Today, BackcountryTrip Planner, or rangers at visitor centers <strong>and</strong>backcountry offices.u Stay on established trails in thermal areas foryour safety <strong>and</strong> to protect these fragile areas.u Stay at least 100 yards from bears <strong>and</strong> wolves,<strong>and</strong> 25 yards from all other animals.u Know how to avoid bears <strong>and</strong> what to do ifyou encounter a bear.u Carry bear pepper spray <strong>and</strong> know howto use it.u Do not feed any animals, including birds.Help preserve <strong>Yellowstone</strong> for the future.3
Aquatic Invasive SpeciesAlready herewhirling disease parasiteNew Zeal<strong>and</strong> mud snailOn their wayEurasian water-milfoilspiny waterflea (plankton)zebra musselThree invasive species already exist in <strong>Yellowstone</strong>’s waters:Whirling disease parasite causes deformities in young nativetrout, which then cannot feed normally <strong>and</strong> are vulnerable topredation. Whirling disease exists in Pelican Creek <strong>and</strong> its tributaries,one of the largest aquatic systems draining into <strong>Yellowstone</strong> Lake.New Zeal<strong>and</strong> mud snails occur in many park streams, wherethey consume aquatic vegetation that immature trout <strong>and</strong> other nativespecies depend on.Lake trout, a non-native predatory species, were introduced to<strong>Yellowstone</strong> <strong>and</strong> Heart lakes, which are native cutthroat waters. Theygrow much larger than native cutthroat trout <strong>and</strong> consume the nativetrout’s young <strong>and</strong> adults, <strong>and</strong> compete with the native trout for food.lake troutThese invasive species are likely to arrive in <strong>Yellowstone</strong>:Eurasian water-milfoil grows in lakes, ponds, shallowreservoirs, <strong>and</strong> calm areas of rivers <strong>and</strong> streams. It is particularlytroublesome in water bodies that experience abundant motorboat use(such as Bridge Bay). Milfoil colonizes new habitats just from stemfragments transported by boating equipment.Exotic plankton, such as spiny waterflea, displace nativezooplankton <strong>and</strong> are difficult for young fish to eat because of theirlong spines. Plankton eggs can remain dormant for decades, evensurviving passage through fish guts to colonize new waters.Zebra mussel adults are usually the size of your fingernail, but cangrow to two inches in length. The larvae (immature form) can be sotiny that you cannot see them. However, exotic species larvae can livein mud, dirt, s<strong>and</strong>, <strong>and</strong> on plant fragments.Exotic fish species, such as bighead carp, silver carp, <strong>and</strong> otherscan irreversibly damage ecosystems through competition with nativefish.Prevent the spread of aquatic invasive speciesBefore you enter <strong>Yellowstone</strong> National Park <strong>and</strong> any time you move to another body of waterwithin the park:Clean your boatClean your gear1. Remove ALL visible mud, plants, fish, or other tiny animals from your boats, trailers, <strong>and</strong>other equipment, including waders, boots, clothing, <strong>and</strong> nets.2. DO NOT dump any water from other sources into <strong>Yellowstone</strong> waters. Drain your boat hull<strong>and</strong> live well in a safe location (a flat, paved, dirt, or gravel area) away from all park surfacewaters.3. NEVER empty bait or release fish, other animals, or plants into a body of water unless theycame out of it. It is illegal to transport live fish within the park.4. CLEAN AND DRY EVERYTHING that comes in contact with water before entering a newbody of water, following these directions:u Dry everything in the sun for 5 days oru Use high-pressure, hot (>104°F) water (available at car washes outside the park) to clean yourboat, trailer, waders, <strong>and</strong> equipmentDispose of all bait before you enter <strong>Yellowstone</strong> National ParkNo natural or organic bait such as minnows, salmon eggs, worms, insects, or foodstuffs—aliveor dead—are allowed in <strong>Yellowstone</strong> National Park. See General Regulation 4b on page 6 fordetails <strong>and</strong> the one exception.4bighead carp5